Drill carriage



l 1950 c. A. LAMBLY ET'AL 2,505,331

' DRILL CARRIAGE Filed May 21, 1946 IflllDllll ////////I Char/e5 AR Lam b/y Lindsey /(//me 1/ ,INVENTORS Patented Apr. 25, 1950 DRILL CARRIAGE Charles A. R. Lambly and Lindsey Kinney, Metaline Falls, Wash.

Application May 21, 1946, Serial No. 671,376

2 Claims. (01. 255-51) The present invention relates to drill carriages. It is the principal purpose of our invention to provide a novel carriage which is designed to carry one air drill and to be taken into drifts or raises or stopes in mining with a minimum amount of difficulty. The carriage as constructed can be taken up or down slopes of as great as 30 degrees with the drill mounted thereon, and can be moved over rock piles with the drill mounted.

A principal purpose of our invention is to provide a carriage of this character which is composed of two main frame members both bent at a point intermediate their ends and connected together only at their ends so as to form a rigid structure whichpresents minimum obstruction to the operator of the drill. Suitable supporting wheels are mounted at the bends so that the wheels and the two end portions of' the frame members extend away from each other at such angles that the wheels and either end of the frame may serve as ground engaging supports.

It is a further purpose of our invention to provide a carriageof this character with means to clamp a drill frame thereto so that the drill can be used to drill holes in a rock face at difrent levels above the floor at any desired angle to the horizontal, the same carriage being operable to support the drill at the floor level so that flat holes may be drilled near the level of the floor without disturbing the mounting of the drill on the carriage.

The novel features that we consider characteristic of our invention are set forth with particularity in the claims. The invention itself, however, both as to its organization and its method of operation, together with additional objects and advantages thereof, will be understood from the description of a specific embodiment when read in connection with the accompanying drawings, in which:

Figure 1 is a view in side elevation of a drill carriage constructed in accordance with our invention;

Figure 2 is a similar view illustrating the carriage with the drill lowered to position to accomplish drilling at the floor level;

Figure 3 is a perspective view of the carriage with the drill mounted thereon;

Figure 4 is a fragmentary sectional view taken at one side of the drill frame to illustrate the manner in which it is clamped upon the cross bar of the carriage; and

5-5 of Figure 2 illustrating the manner of mounting the wheels to the carriage.

Referring now in detail to the drawings, our invention is embodied in a drill carriage which is characterized by its extreme simplicity. The carriage is adapted to support an air drill for use in drilling holes in tunnels and is particularly adapted for mining work. A carriage for this purpose should be light in weight yet strong and it should be easily movable so that it can betaken up or down relatively steep slopes, over rock piles and yet supported solidly when the drill is being used. The carriage embodying our invention is simple in construction so that it is very light. It consists of two side frame members it and H which desirably are constructed of pipe or tubing, the frame members being bent as shown at [2 and I3 at a point about one-third of the way from one end thereof. The angle of bending preferably is in the neighborhood of '75 degrees. The pipe members l0 and i l desirably are somewhat deformed in the bending so as to provide spaced apart ribs l4 adjacent to the bend. These ribs are exaggerated in the drawing. The purpose of forming the ribs [4 and the depressions l5 therebetween is to provide sockets in which a clamp bar on the frames for the supporting wheels may be located and secured. These ribs and sockets may be left off if desired. The said frame members it and I l are connected together by a drill supporting bar l6, the bar It is welded or otherwise rigidly secured to the short ends of the frame members from the bend. At the p other ends of the frame members a handle bar Figure 5 is a sectional view taken on. the line I1 serves to connect the members, the bar I! being welded in place. It will be understood of course, that the drill supporting bar It and the bar I! are constructed of pipe or tubing like the members In and l l. The entire frame preferably is connected together by welding the members III, Ii, 16, and I! to each other wherever they meet.

A drill frame I 8 is adapted to be secured to the bar l6 so as to support an air drill Illa on the carriage. The frame i8 has a head l9 secured upon a mounting block 20. The block 20 has a fixed jaw 2| and a sliding jaw 2| (1 to engage the head i9 and secure the drill frame to the block 20. The block 20 is in turn clamped to the bar l6 by a cooperating clamping member 22 and clamping bolts 23.

The construction of the drill mount is such that were it desired to obtain a different level than that provided by the two positions shown in Figures 1 and 2, a longer column of the desired length with a head 19 can be secured on the frame I8 and utilized to raise the drill frame more or less above the level of the block 29 to permit supporting of the drill at any elevation from the floor level shown in Figure 2 up to a level substantially higher than that shown in Figure 1. As an example of the range to which the carriage is applicable, the drill may be supported by the use of thetwp .position s-lshown in Figures .1 and 2, at about four feet above the floor or substantially at the floor level, then by using a column to raise the drill frame above the level of the block 20, the drill can be raised to any desired height up to about nine feet.

The construction by which. the carriage. is,

given wheel support comprises two rubberf'tir ed Wheels 24 and 25. These wheels are journalled in brackets 26 and 27 which' aresubstantially U-shaped. The U-shaped brackets may be wmade v; of flat steel bar stock bent to the proper shape. These braclgetsr are clarnped to the members It? and II by' ut'ilizing 'a separate clamping bar28 which issecured on thel top of the ,-bracket and bcntilpwalfdlv andl'aiound the, pipe and then downwardlylpar allel to thenear leg of the bracket'where it is furthe r secured to forma firm mounting on the pipe member.

It is'b'elieved that the, eonstructionof our drill carriage will be clear from the foregoing de scription and thep accompanying drawings. The total weight of the'carr'iage need not exceed 100 pounds ,inord er to givev adequate strength for our pu'rposesf Thecarriagewhen the drill mounted in positionfor usecan be moved to the rock 'faceto be drilled. The drillitself iswalso mounted as to be substantially,balancedgonfthe crossbar I 6 so.th a t if it isdesired toLsupportthe, carriage,thehandledbar l! is raised to acomiort-I able lev'el for a, man to grasp .it, and, thegdrill. is. secured level in, thisposition." The, carriage. can. then be pushed orpulled like a tWQLWhQGledLCal'tQ When; the carriage is moved, tQbp'erating position the carriage handle is then set on,the,ground orffloor adjacent, the rock face to' position the, drill as shown in, Figure'l so asutodrill a. hole in; ther'ock faceiat the desired level abovelthefioor, Different heights can be .Ob'tainedby having longersor shorterfrarnemembers fill and H, or by, using difie rent length columns "to carry the drill. The drill of course, can be swung on the member to get the proper angle tothe horizontal on an desired hole' that, is tobe drilled. Byv swing- "he drill o nits, niotin the block at, anycom binationof an'gles-canbelobtained fordrilling hole that maybeflneededf.

When it is desiredfto drillholesiat, the foot, of a bench or tunnel, onthe floor 1ev'e1'," the. handle of the carriageiisfraised upfun'tilthe drill column re'stson the gro der. floor. Thejdrill is then in. position to drill fiat holes on thelevel ofthe floor.- In order toiget intermediate hole level'or to drill havingspaced-ribsinside thehbendlbetween which.

the holes in the face at a higher level, it is necessary to support the drill on a column above the cross bar l6.

Having thus described our invention we claim:

1. A drill carriage comprising two parallel tubular side bars, a cross bar at each end of the bars rigidly connecting them, the side bars being bent in the same direction at an intermediate point, about one -third of the -length, thereof so that j the p'i'jrtion adjacent one crosf's" bar, extends at an :angle of about degrees to the other positign, a drill mount on the cross bar at the short end portion, the other cross bar serving as a name; and individual wheel supports for the sidebars, each comprising an inverted U-shaped "'frainehaviri'g awh'eel axle at the ends of the legs thereof and a wheel mounted thereon between the legs, a clamping bracket for each frame extending, over the corresponding side bar at the bend and secured to the U-shaped frame holding ai axne r idly outwa d. ates an r r than degreestogboth portionsf g '21- drill 'carriagieicdmprising two parallel tu bular side bars, ajcrosslbar at each end of the bars rigidly them, the side bars being bent in the same direction at ahf intermed iate point about 'one third o f' the length thereof so that the: portion adjacent one'cr o ss"bar eXtends at'a'n angle of aboutfi tidcgreesto the other portion, a drill mount on the cross bar at the shor't end portion, the other cross bar serving'as a handle, I and individual wheel supports for the sidebars, each comprising an inverted U shaped frame having a wheel -axle'fatthe ends 'of the legs thereof and a-wheel mountedjthereon between the legs, a clamping bracketfor each-frame ex tending over the 'co'rresp onding sidebar at the benduand secured to thelUeshaped frame holding the frame rigidly. outward at an angle of more than. 90 degreesto bothltportions the sidebars the. clamping .bracket is, seated;

Gimmes R-..L,AMBLY- LINDSEY nnnnnnnons; cu n The following referencesare of ,,.record in the.

file of this patents 

